What Is the Density Range of GRC Materials? What Are Its Advantages Compared with Natural Stone? A Comparison of Lightweight Technology and Overall Performance

GRC material has a density range of 1.8-2.1g/cm³, only two-thirds that of natural stone (2.6-2.8g/cm³). This lightweight property brings multiple advantages including structural load reduction, convenient construction, and design freedom. Through optimized mix ratios and processes, Qinglong Group enables GRC to achieve lightweight properties while maintaining high strength, reducing structural loads by more than 30% in super high-rise buildings. In the Wuhan Han Show Theater project, GRC curtain panels weighed less than one-quarter of stone, with installation efficiency improved by 50%.

Relationship Between Density and Performance

Qinglong GRC maintains a stable density of around 2.0g/cm³ by adding lightweight aggregates and controlling the water-binder ratio. Its compressive strength reaches 40-80MPa, comparable to medium- and low-grade stone, but with toughness far exceeding that of stone. We use vacuum dewatering technology to ensure density uniformity.

Advantages Over Stone

Light weight: transport and installation costs reduced by 40%; high moldability: double-curved and openwork designs are achievable; excellent durability: no weathering cracks, with maintenance cycles extended to 10 years. Qinglong GRC has been used for 10 years in Hainan's high-temperature, high-humidity environment with no performance degradation.

Project Cost-Effectiveness Analysis

Although the unit price of GRC is slightly higher, when factoring in structural load reduction, installation efficiency, and maintenance savings, its whole-life-cycle cost is 20% lower than that of stone. Qinglong Group recommends that owners select materials from a full-life-cycle perspective.